7.14% is the change from 294 to 315
Calculation steps:
[( 315 - 294 ) ÷ 294] x 100 = 7.14%
Formula
Percentage change = [(315 - 294) / 294] x 100
Subtract the new number by the original number
315 - 294 = 21
21 ÷ 294 = 0.07142857142857142
0.07142857142857142 x 100 = 7.14%